Last frost date in Manchester, New Hampshire
April 30
Average last frost in spring. In an early year (1 in 10) it's over by April 19; in a late year (1 in 10) it comes after May 14.
October 11
Average first frost in fall. 1 year in 10 it comes by September 30.
Source: NOAA U.S. Climate Normals 1991–2020, station Massabesic Lake (USC00275211), 2.6 miles from Manchester, elevation 253 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 19 | Apr 30 | May 14 |
| First frost in fall | Sept 30 | Oct 11 | Oct 27 |
Frost-free days in an average year: 164
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 12 | Oct 2 |
| Frost (32°F) | Every year | Apr 30 | Oct 11 |
| Hard freeze (28°F) | Every year | Apr 17 | Oct 24 |
Nights at 32°F or colder in an average year: 161
What to plant now in Manchester
- Spring planting calendar for an average last frost around April 30 Manchester: April 30
- Fall planting calendar for an average first frost around October 10 Manchester: October 11
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in New Hampshire
- Nashua 16 mi · last frost Apr 29
- Concord 18 mi · last frost May 8
- Dover 32 mi · last frost May 3
- Rochester 32 mi · last frost Apr 30
- Portsmouth 34 mi · last frost May 4
Updated